Jvc BR DV 600 E Service Manual Part 1

Page 106

Measuring Measuring point (©i
No. Item instruments & Mode Adjustment parts (@l Adjustment procedure
Input signals Adjustment level ($17)
3 PBEO Ilnternal color 'REC © PC monitor Notes: 'Use a new tape or non-used section of
(Error rate) bars (100%) i G) 68 h, 69h, 67h, 68h, tape in this adjustment.
adjustment 0 PC PB 63h, 64h - Be sure to clean the head before this ad-
vVITERBl : OFF ir Minimize error rate justment.
(adjustment (Total less than -It takes about 1 second from the data
software) 1000, and less than change to its reflection in the error rate
EnorTImin9168h 500 at each chan- IAlso measure the error rate after the
nelsl Sync Block" monitor has become per-
fectly OKt

- If the adjustment within specification is
not possrble, clean the head. lithe next
adjustment is still out of specification, use
another tape,

1 + D Delay : em
PLL Phase : 65h

(1) Record the color bar signal about 5 minuitsand
play it back

(2) Click (PB E0 (Error ratellt

(3i Click the [OK] button

(4) Adjust New value" of each address to mini~
mize the error rate. by following the order
shown in the flow chart.

(5) After adjustment, click the ./" marking.

(6) There is "PB E0 Auto adjustment down
the "Adjustment" tab which is automated with
above steps (2)-(5).

Error Timin : 68h

ErrorTir-ning : 68h
Error Here Check

243 Head cleaning

Frrur n... MW. ,

Is error rate wflhin
specification?

2.43 Heed cleaning

s DAV Lml
m c Lml
, r, M N Lm 1mm rm color hung-ml
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, cump Lml m m ,
FWVWI vl'rmm $0th 1
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r ND v um ramp mum in
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REC cmunr * .

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ls error rate within
specification?

Replace tape.

I'.

r": PB mining PDIm um)
i e rs FLL tax
{rumour mwhmasnmm

Amusmnfl POM

fir- r: PLL 31K

Is error rate within

_ _ I s chIcAnnn
specification?

rm Wampum 1m mnmamnmmm mum
mum urn-i),

DESCNPTIDII

Emma. m: mm

mmh. m 100% tnlarlm rind mlrwmmndu.

Pl-ybmk m. up!

summer In or;

'nmmunnu nun-am mrmxr Mn-mm

umm rm Syn: Black arm. mm mm magma. u. an -orc',
mi. mmmmm in «mud unruly

212 lntarchangaabllity Adjusunem

ls error rate within
specification?

Drum failer or
FlF circuit lailer

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